Smith, C. (2012). Pro Open Source Mail: Building an Enterprise Mail Solution. Apress.
Trích dẫn kiểu ChicagoSmith, Curtis. Pro Open Source Mail: Building an Enterprise Mail Solution. Apress, 2012.
MLA引文Smith, Curtis. Pro Open Source Mail: Building an Enterprise Mail Solution. Apress, 2012.
警告:这些引文格式不一定是100%准确.